wxWidgets Discussion Forum

Posted: **Wed May 24, 2006 5:20 pm**

HI, i have a little question xD
I Maked a DLL and inside that i have got a class : "DllClass".
I maked it without problem, but when i want call the class member/function i dont know how i can do this.

Code: Select all


typedef DllClass* (* DllClass_v)(void); 
wxDynamicLibrary dyn;

if( dyn.Load (LIB_NAME, wxDL_VERBATIM) )
{ 
    wxMessageBox ( _T ("#Worked") , _T("DLL LOaded") , wxICON_INFORMATION | wxOK ) ;
}
else
{
    wxMessageBox ( _T ("#ARgh, i cant open it") , _T("DLL Error") , wxICON_INFORMATION | wxOK ) ;
}

wxDYNLIB_FUNCTION ( DllClass_v , CreateTest , dyn ) ;

if ( ! pfnCreateTest )
{
    wxMessageBox ( _T ( "NO FUNCTION" ) , _T ( "NO FUNCTION" ) , wxICON_INFORMATION | wxOK ) ;
}
else
{
    wxMessageBox ( _T ( "FUNCTION" ) , _T ( "FUNCTION" ) , wxICON_INFORMATION | wxOK ) ;
                
}

With this code, i know ( i thing ) thath inside "pfnCreateTest" there is the class , but, How i can use this ?
DLL CODE

Code: Select all

BOOL APIENTRY DllMain( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved )
{
return TRUE;
}

extern "C" __declspec (dllexport) DllClass* CreateTest()
{
    //Nothing
}

Thanks

Posted: **Thu May 25, 2006 7:43 am**

Do I understand correctly ?
You want to create a dll with a class implementation. You want to load this dll at runtime, create an instance of this class (by a factory function) and call functions from this instance from the main program ?

If it is that, you must declare the class prototype (or at least the interface of your class) in order to precise what function the compiler must envisage.

wxWidgets Discussion Forum

wxDynamicLibrary and class

wxDynamicLibrary and class